Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7596
Title: Graphene-quantum dot hybrid optoelectronics at visible wavelengths
Authors: Salihoğlu, Ömer
Kakenov, Nurbek
Balcı, Osman
Balcı, Sinan
Kocabaş, Çoşkun
Keywords: Graphene
Quantum dots
Heterostructures
Optoelectronic devices
Nanophotonic devices
Graphene field effect transistors
Fluorescent displays
Issue Date: Jun-2018
Publisher: American Chemical Society
Source: Salihoğlu, Ö., Kakenov, N., Balcı, O., Balcı, S., Kocabaş, Ç. (2018). Graphene-quantum dot hybrid optoelectronics at visible wavelengths. ACS Photonics, 5(6), 2384-2390. doi:10.1021/acsphotonics.8b00163
Abstract: With exceptional electronic and gate-tunable optical properties, graphene provides new possibilities for active nanophotonic devices. Requirements of very large carrier density modulation, however, limit the operation of graphene based optical devices in the visible spectrum. Here, we report a unique approach that avoids these limitations and implements graphene into optoelectronic devices working in the visible spectrum. The approach relies on controlling nonradiative energy transfer between colloidal quantum-dots and graphene through gate-voltage induced tuning of the charge density of graphene. We demonstrate a new class of large area optoelectronic devices including fluorescent display and voltage-controlled color-variable devices working in the visible spectrum. We anticipate that the presented technique could provide new practical routes for active control of light-matter interaction at the nanometer scale, which could find new implications ranging from display technologies to quantum optics.
URI: https://doi.org/10.1021/acsphotonics.8b00163
https://hdl.handle.net/11147/7596
ISSN: 2330-4022
2330-4022
Appears in Collections:Photonics / Fotonik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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